The first Minister of Education of Hungary, József Eötvös spent most of his childhood at his grandparens' property in Ercsi. According to his wii he was burried here in the family grave. The museum was also furnished here, in the guest-house attached to the family mansion.

The Eötvös József memorial hall was formed by the National Pedagogical Library in 1971, after a work of arrangement and collection of several years. The memorial hall was extended by the local council several times. The modern and spectacular exhibition was established by the Pedagogical Museum in 1988. Since 1997 the local government has been caring for the museum.

Besides the exhibition, which attracts about three thousands visitors every year - visitors can search in the continuously growing library and archives which can first of all give help to university and college graduates.